Tom Doak,
SFGC and other inland courses have bigger features which create a sense of scale, as do wide fw.
There is also the factor of making bunkers and greens appear as big as they are. I noticed this yesterday at Pine Dunes - on a few holes, Jay had a slightly uphill situation and built big bunkers, but they appeared as slivers, either because he tried to stack two bunkers in too small a hill or had a small ridge in front. So, playing a bit downhill and detail design can contribute to a sense of scale on those features as well. Its been a while since I have been there, but the smaller features of PB don't give it a grand sense of scale to me for some reason, even with the Ocean there. CP has grander scale in the woods than PB has on the ocean, IMHO.
No doubt there are some great courses without the bigness that creates scale - Merion being a good - but not the only example. However, I have never consciously designed to a big scale just to win awards. I am sub or consciously aware of the scale of the design as to what works best to make the course best. Sometimes, small scale does work better, esp. on wooded sites. Going back to CP of SF, if the big features were stuck in smaller cleared areas, it might not look as good as it does, but its hard to be more specific on that.